Telephone dialing-key cover



FIG. 1 is a top, left, front perspective view of a telephone dialing key cover showing my new design;

FIG. 2 is a front elevational view thereof;

FIGS. 3 and 4 are respectively top and bottom plan views thereof;

FIG. 5 is a rear elevational view thereof and

FIGS. 6 and 7 are respectively left and right side elevational views thereof; 

The ornamental design for the telephone dialing-key cover, as shown and described. 